136704525407631 has 8 divisors (see below), whose sum is σ = 202525222826160. Its totient is φ = 91136350271736.

The previous prime is 136704525407621. The next prime is 136704525407647.

136704525407631 is a `hidden beast` number, since 1 + 3 + 6 + 7 + 0 + 4 + 525 + 40 + 76 + 3 + 1 = 666.

136704525407631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 136704525407631 - 2¹³ = 136704525399439 is a prime.

It is a super-2 number, since 2×136704525407631² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136704525407621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2531565285300 + ... + 2531565285353.

It is an arithmetic number, because the mean of its divisors is an integer number (25315652853270).

Almost surely, 2^{136704525407631} is an apocalyptic number.

136704525407631 is a deficient number, since it is larger than the sum of its proper divisors (65820697418529).

136704525407631 is an equidigital number, since it uses as much as digits as its factorization.

136704525407631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063130570662 (or 5063130570656 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 136704525407631 in words is "one hundred thirty-six trillion, seven hundred four billion, five hundred twenty-five million, four hundred seven thousand, six hundred thirty-one".